Title :
Fiber cavity ring-down for strain sensing using an OTDR
Author :
Silva, S. ; Passos, D.J. ; Marques, M.B. ; Frazão, O.
Author_Institution :
INESC Porto, Porto, Portugal
Abstract :
This work presents a fiber CRD configuration for the measurement of strain. An Optical Time-Domain Reflectometer was used to send impulses down into the fiber loop cavity, inside of which a chirped fiber Bragg grating was placed to act as a strain sensing element. This technique could provide strain results with both conventional CRD-based configuration and the OTDR.
Keywords :
Bragg gratings; fibre optic sensors; optical time-domain reflectometry; strain measurement; strain sensors; OTDR; chirped fiber Bragg grating; fiber CRD configuration; fiber cavity ring-down; fiber loop cavity; optical time-domain reflectometer; strain measurement; strain sensing; Cavity resonators; Chirp; Optical fiber couplers; Optical fiber sensors; Strain; Cavity ring down; OTDR; optical fiber sensors; strain;
Conference_Titel :
Photonics Conference, 2014 Third Mediterranean
Conference_Location :
Trani
DOI :
10.1109/MePhoCo.2014.6866500
